Legal
Last updated: 6 October 2026.
Terms of Use
These terms are an agreement between you and Blackjack Lens ("we", "us") covering the Blackjack Lens software ("the Software") and this website. By downloading, installing or using the Software, you agree to them. If you do not agree, do not use the Software.
1. Eligibility
You must be at least 18, or the legal gambling age where you live if that is higher. You must not use the Software anywhere that its use, or gambling itself, is unlawful.
2. What the Software is
The Software is analysis software. It shows mathematical estimates about blackjack hands. It is not a gambling service, takes no wagers, holds no funds, and never places bets or operates any casino interface for you. All gambling decisions, and their results, are yours alone.
3. Your responsibilities
- You are solely responsible for making sure your use of the Software is legal where you are. Some places make it a criminal offence to use a device or software that helps you play, count cards or calculate odds during a game.
- You are solely responsible for complying with the terms of any casino or gaming operator you use. Many operators ban third-party software and may close accounts or withhold balances and winnings if you use it. We are not responsible for any action an operator takes against you.
- You must not use the Software to break any law, regulation or contract, to defraud anyone, or to get around any security or technical measure.
4. Licence
Blackjack Lens is sold for a single one-time payment. Your licence is tied to one Blackjack Lens account and may be activated on up to 2 Windows PCs at a time. Accounts and licences may not be shared or resold. Because the Software is digital content delivered immediately, at checkout you ask for the download to start straight away and acknowledge that you then lose the 14-day EU right of withdrawal (Directive 2011/83/EU, Article 16(m)). If the Software does not work on any supported table on your PC, email us within 14 days of purchase for a full refund.
We give you a personal, non-exclusive, non-transferable, revocable licence to install and use the Software for lawful purposes in line with these terms. You may not resell, sublicense, or redistribute it, except as open-source licences for included components allow. The licence ends automatically if you break these terms.
5. No guarantee of results
The Software's outputs are estimates. They can be wrong because of simulation error, approximations in the model, card-recognition mistakes, incorrect table rules, incomplete data, or bugs. Using the Software does not guarantee that you will win, or that you will lose less. Gambling involves risk of financial loss. Never stake money you cannot afford to lose.
6. Disclaimer of warranties
THE SOFTWARE AND WEBSITE ARE PROVIDED "AS IS" AND "AS AVAILABLE", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, ACCURACY AND NON-INFRINGEMENT, TO THE FULLEST EXTENT THE LAW ALLOWS.
7. Limitation of liability
TO THE FULLEST EXTENT THE LAW ALLOWS, WE ARE NOT LIABLE FOR ANY GAMBLING LOSSES, LOST PROFITS, CLOSED OR RESTRICTED ACCOUNTS, CONFISCATED FUNDS, OR ANY INDIRECT, INCIDENTAL, SPECIAL OR CONSEQUENTIAL DAMAGES ARISING FROM YOUR USE OF THE SOFTWARE. OUR TOTAL LIABILITY IS LIMITED TO THE AMOUNT YOU PAID US FOR THE SOFTWARE IN THE 12 MONTHS BEFORE THE CLAIM. Some jurisdictions do not allow certain limitations, so some of this may not apply to you.
8. Indemnity
You agree to indemnify and hold us harmless from claims, losses and costs (including reasonable legal fees) arising from your breach of these terms, your breach of any law, or your breach of any third party's terms, including a casino operator's.
9. No affiliation
We are not affiliated with, endorsed by, or sponsored by any casino, gaming operator, game provider or live-dealer studio. Any third-party names or trademarks belong to their owners and are used only to describe compatibility.
10. Changes and termination
We may update these terms. We will change the "last updated" date and, for material changes, show a notice on this site. We may stop offering the Software at any time.
11. Governing law
These terms are governed by the laws of Greece. Disputes go to the courts of Thessaloniki, Greece, unless the mandatory consumer law where you live says otherwise.
12. Contact
support@blackjacklens.com · Thessaloniki, Greece
Privacy Policy
This website
This website sets no tracking cookies and runs no analytics or advertising scripts. Your browser keeps one local setting to remember that you answered the age prompt, and it is never sent to us. The Questions assistant runs entirely in your browser and answers from a fixed list; what you type into it is not stored or sent anywhere. The site is hosted by Cloudflare, Inc. (Cloudflare Pages), which may keep standard request logs (IP address, time, page requested) for security and abuse prevention, for a limited period under its own privacy policy.
The Software
- What it reads: when you connect a table, the Software reads the browser tab or window you choose. That can include cards, table rules, wagers, table limits and the balance shown there.
- Where it goes: all of it is processed on your computer and none of it is sent to us or anyone else, except the optional anonymous casino samples described below.
- Licence check: to confirm your purchase, the Software sends your account email, your licence key and a device identifier to our licensing and payment provider, which is named at checkout. We use these only to manage your licence.
- What it stores: preferences, shoe history, provider checkpoints, decision logs and diagnostics are saved under
%LOCALAPPDATA%\BlackjackLiveLabon your PC. - Deleting it: use the in-app option to delete local data, or delete that folder. Uninstalling also removes the Software.
The browser connector (Blackjack Lens Connector)
- What it reads: on supported casino and game-provider sites, the connector reads the live blackjack table's own game messages (cards, rounds, table rules and limits) and your own seat requests. It never clicks, bets or changes anything on the page, and it never captures video or screenshots.
- Where it goes: only to the Blackjack Lens app on your own computer (
127.0.0.1). The connector itself sends nothing to any internet service. - Check this table: when you click it, the connector lists the server names of the current page so you can see whether the table is supported. Nothing is read without that click.
- Enable on this site: the connector reads a new casino site only after you approve Chrome's own permission prompt for that site.
Optional: help add an unsupported casino
If you click Help add this casino on a table the Software cannot read yet, the app sends anonymous samples of that table's game messages to the Blackjack Lens website so we can add support for it. Before anything leaves your computer, the app removes nicknames, player and session IDs, balances, bet and win amounts, chat and any other text. Only message names, card values, seat numbers and the game server's name remain. At most three such reports are sent per day. This is off unless you click that button, and you can turn it off at any time with Turn off in the connector. We use these samples only to add casino support. We do not sell them, use them for advertising, or share them with third parties.
If you email us, we use your address and message only to reply, and we keep them for no longer than we need to. You can ask for them to be deleted. Depending on where you live (for example under GDPR or CCPA), you may have rights to access, correct or delete your personal data. Contact support@blackjacklens.com.
Disclaimer
Blackjack Lens is for information and analysis only. Nothing on this site or in the Software is financial, legal or gambling advice. Expected-value figures are estimates with their own error. Card recognition can be wrong, so always check what the Software proposes. Any example figures on this site are illustrations, not results. We make no claim that any user has made money, or will.
Gambling can be addictive. If it stops being fun, stop. Free help: US 1-800-GAMBLER · UK 0808 8020 133 · Gamblers Anonymous.
Third-party notices
- Python and Tcl/Tk: PSF-2.0 and Tcl/Tk (BSD-style) licences.
- aiohttp, aiosignal, frozenlist, multidict, propcache, yarl: Apache License 2.0 (aiohttp also MIT).
- NumPy, idna, psutil: BSD-3-Clause.
- OpenCV (opencv-python): Apache License 2.0; bundles FFmpeg under LGPL-2.1.
- Pillow: MIT-CMU License.
- attrs, charset-normalizer, mss, PyYAML: MIT License.
- aiohappyeyeballs, typing_extensions: PSF-2.0.
Copies of the full licence texts ship with the Software.